Chinese Journal of Catalysis ›› 2016, Vol. 37 ›› Issue (4): 533-538.DOI: 10.1016/S1872-2067(15)61047-6

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Synthesis of nitrocarbazole compounds and their electrocatalytic oxidation of alcohol

Yinghong Zhu, Jianqing Zhang, Ziying Chen, Anlun Zhang, Chunan Ma   

  1. State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China
  • Received:2015-12-01 Revised:2016-01-27 Online:2016-03-30 Published:2016-03-30
  • Contact: Chunan Ma
  • Supported by:

    This work was supported by the Special Program for the National Basic Research Program of China(973 Program, 2012CB722604).

Abstract:

Three compounds with nitrocarbazole frameworks were synthesized and their electrochemical reversibility as organic electrocatalysts was studied by cyclic voltammetry. The electrochemical reversibility and oxidation-reduction potential of the compounds were greatly affected by their substituents. The oxidation-reduction potential of the compound with an electron-donating group was negative, while that of the compound with an electron-withdrawing group on the carbazole framework was positive. The electrocatalytic oxidation activities of the nitrocarbazole compounds were investigated through cyclic voltammetry and controlled potential electrolysis at room temperature. The electrocatalysts showed excellent selectivity for p-methoxybenzyl alcohol, converting it to the corresponding aldehyde through electro-oxidation with just 2.5 mol% of the electrocatalysts presented. The electrocatalysts maintained their excellent electroredox activity following recycling.

Key words: Nitro-carbazole compounds, Organic electro-catalyst, Indirect electro-oxidation, Selective electro-oxidation, Redox reversibility